Logitech QuickCam Zoom Web Camera (Silver) Add live video to MSN Messenger, now with fast video and large 320 x 240 image size Works with video-enabled Yahoo! Messenger and Windows Messenger Let the automatic face-tracking technology follow your every move Enjoy true 640 x 480 resolution, automatic zoom, sound capturing with built-in microphone, and USB 2.0/1.1 compatibility Works with PC and Mac OS X